Finding the Fourth Proportional to 23,330.22, 32,196.15 and 12,720.30

Step by Step Solution

1. Step 1: Write the proportion equation
   23,330.22 : 32,196.15 = 12,720.30 : x
2. Step 2: Convert to fraction form
   23,330.22/32,196.15 = 12,720.30/x
3. Step 3: Cross multiply
   23,330.22x = 32,196.15 × 12,720.30
4. Step 4: Simplify right side
   23,330.22x = 409,544,686.85
5. Step 5: Solve for x
   x = 409,544,686.85/23,330.22
6. Step 6: Final answer
   x = 17,554.26